Deck 9: Respiratory System

Question 1

Which of the following is not part of the lower respiratory tract?

A) bronchi
B) lungs
C) alveoli
D) trachea
E) larynx

Answer 1

E
Explanation: The larynx is part of the upper respiratory tract.

Question 2

Which part of the lower respiratory tract is intimately in contact with the cardiovascular system?

A) lungs
B) bronchial tree
C) trachea

Answer 2

A
Explanation: The lungs contain the alveoli where gas exchange occurs between the cardiovascular system and the respiratory system.

Question 3

Which part of the pharynx is mismatched with its location?

A) nasopharynx--where the nasal cavities open above
B) oropharynx--where the sinuses open
C) laryngopharynx--where the pharynx opens into the larynx

Answer 3

B
Explanation: The oropharynx is where the oral cavity opens.

Question 4

When the glottis becomes narrower,

A) the pitch of sound goes up.
B) the pitch of sound goes down.

Question 5

The epiglottis is the slit between the vocal cords.

Question 6

The right lung is larger than the left lung.

Question 7

If it were not for the nasal cavity,

A) we would not be able to speak.
B) more debris would enter the lungs.
C) oxygen would not be exchanged in the alveoli.
D) food would go down the wrong pipe.
E) air would not be conducted to the lungs.

Question 8

Which of the following is not part of the upper respiratory tract?

A) bronchi
B) nasal cavity
C) epiglottis
D) pharynx
E) glottis

Question 9

The pharynx contains the vocal cords.

Question 10

The respiratory is unlike the digestive system in that air comes in and out the same opening.

Question 11

Which of the following is not part of the respiratory system?

A) trachea
B) pharynx
C) esophagus
D) bronchus
E) nasal cavity

Question 12

The role of the respiratory system is to ensure that oxygen leaves the body and carbon dioxide enters the body.

Question 13

Ventilation includes

A) inspiration only.
B) expiration only.
C) both inspiration and expiration.

Question 14

Which part of the respiratory system is a skeletal muscle?

A) diaphragm
B) lung
C) trachea
D) larynx
E) glottis

Question 15

The pharynx contains the tonsils that protect against invasion of inhaled foreign particles.

Question 16

Inhalation is another word for inspiration.

Question 17

What do inspiration and expiration have in common?

A) They both use the same pathways.
B) The air travels in the same direction in both.
C) They both end in the lungs.
D) They both conduct air from the outside.
E) They both remove wastes from the tissues.

Question 18

Which part of the respiratory system carries out gas exchange?

A) bronchus
B) larynx
C) nasal cavity
D) lungs
E) diaphragm

Question 19

Sound is produced when air rushes into the lungs.

Question 20

Where in the lower respiratory tract would you find goblet cells?

A) bronchial tree
B) trachea
C) lungs

Question 21

Some of the inhaled air never reaches the lungs.

Question 22

How does the respiratory center control the diaphragm?

A) via the blood carbon dioxide level
B) via the blood pH
C) via the intercostal nerves
D) via the phrenic nerve
E) via the vagus nerve

Question 23

What diffuses from the air in the alveoli into the blood?

A) oxygen
B) carbon dioxide
C) water

Question 24

The amount of air that moves in and out with each breath is called the

A) vital capacity.
B) tidal volume.
C) inspiratory reserve volume.
D) expiratory reserve volume.
E) residual volume.

Question 25

The total cross sectional area of the alveoli is about the size of a textbook.

Question 26

The trachea and upper bronchial tree are similar in that both are held open by cartilaginous rings.

Question 27

Which of the following is not a part of inspiration?

A) The pressure in the lungs increases.
B) The rib cage moves up and out.
C) The intercostal muscles pull the ribs outward.
D) The diaphragm contracts and moves down.
E) Air rushes into the lungs.

Question 28

If you force inspiration,how much more air can you breath in than the tidal volume?

A) two times
B) three times
C) four times
D) five times
E) six times

Question 29

The vital capacity is equal to the

A) maximum amount of air breathed in.
B) maximum amount of air breathed out.
C) maximum amount of air breathed in and the maximum amount of air breathed out.

Question 30

Where is the respiratory control center located?

A) in the brain
B) in the bronchi
C) in the lungs
D) in the aorta
E) in the diaphragm

Question 31

Can you hold your breath until you die?

Question 32

What separates the lungs from the thoracic cavity?

A) pleura
B) alveoli
C) cartilaginous rings
D) bone
E) skeletal muscle

Question 33

What is missing in infant respiratory distress syndrome?

A) bronchioles
B) pleura
C) one or more lobes of the lung
D) alveoli
E) surfactant

Question 34

Humans inhale by negative pressure.

Question 35

When the pH of the blood becomes more acidic,the respiratory center

A) increases the rate and increases the depth of breathing.
B) increases the rate and decreases the depth of breathing.
C) decreases the rate and increases the depth of breathing.
D) decreases the rate and decreases the depth of breathing.

Question 36

Jesse is breathing at a rate of 15 ventilations per minute.This would be considered

A) hyperventilation.
B) normal.
C) hypoventilation.

Question 37

Chemoreceptors for blood pH are located in the brain stem and the lungs.

Question 38

Why is the actual flow of air into the alveoli during inspiration passive?

A) because there is a continuous column of air from the pharynx to the alveoli
B) because the lungs are surrounded by the thoracic wall
C) because the alveoli have a very large surface area
D) because the intercostal muscles are involved
E) because the diaphragm is involved

Question 39

Muscle contraction is required for expiration.

Question 40

You cannot increase the amount of air you exhale.

Question 41

Which of the following is not a lower respiratory infection?

A) tuberculosis
B) pneumonia
C) bronchitis
D) pulmonary fibrosis

Question 42

Which of these lower respiratory diseases should be treated with antibiotics?

A) pulmonary fibrosis
B) pulmonary tuberculosis
C) emphysema
D) asthma

Question 43

Upon X-ray,it could be seen that Josh's lungs were filled with fluid.What is the proper diagnosis for Josh's illness?

A) bronchitis
B) emphysema
C) asthma
D) pulmonary fibrosis
E) pneumonia

Question 44

How does breathing at a very low rate affect the reaction H⁺ + HCO₃^- → H₂CO₃ → H₂O + CO₂ ?

A) pushes it to the right
B) pushes it to the left
C) does not affect it

Question 45

When you breathe into a paper bag after hyperventilating,you are decreasing the amount of carbon dioxide in the blood.

Question 46

What is the correct order of the following steps in the progression of lung cancer in a smoker? 1.Cilia are lost.2.There is a thickening and callusing of the cells lining the bronchi.3.Metastasis occurs.4.A tumor forms.5.Cells with atypical nuclei appear.

A) 1,2,3,4,5
B) 2,1,5,4,3
C) 5,1,2,3,4
D) 1,2,4,3,5
E) 2,1,4,5,3

Question 47

How are internal and external respiration alike?

A) Both involve an exchange of gases.
B) Both involve carbon dioxide diffusing into the lungs.
C) Both involve oxygen diffusing into the lungs.
D) Both involve carbon dioxide diffusing into the body's tissues.
E) Both involve oxygen diffusing into the body's tissues.

Question 48

The difference between a restrictive pulmonary disorder and an obstructive pulmonary disorder is that the in restrictive disorder the lungs have lost their elasticity and in an obstructive disorder air does not flow freely in the airways.

Question 49

Which way does the reaction H⁺ + HCO₃^- → H₂CO₃ → H₂O + CO₂ proceed in the lungs?

A) to the right
B) to the left

Question 50

Most of the carbon dioxide is carried in the plasma as

A) carbonic anhydrase.
B) bicarbonate ion.
C) carbonic acid.
D) a gas, carbon dioxide.
E) reduced hemoglobin.

Question 51

Carbonic anhydrase and carbaminohemoglobin are similar in that they are both enzymes involved in respiration.

Question 52

Lung cancer,just like breast cancer,is more prevalent in women than in men.

Question 53

Carotid bodies and aortic bodies detect

A) blood pH.
B) oxygen blood levels.
C) oxygen tissue levels.
D) stretching of the lungs.
E) the residual volume.

Question 54

One of the main symptoms of a sinus infection is hoarseness.

Question 55

Which of the following is not a symptom of emphysema?

A) The elastic recoil of the lungs is reduced.
B) The surface area for gas exchange is reduced.
C) The alveoli are distended and their walls damaged.
D) The airways are inflamed and filled with mucus.
E) The heart works harder to force more blood through the lungs.

Question 56

"Strep throat" is caused by what type of infecting organism?

A) bacteria
B) virus
C) fungus
D) worm
E) protist

Question 57

Even if you quit smoking,the damage to your lungs is already done and they will not return to normal.

Question 58

Which of the following infections does not affect a structure in the respiratory tract?

A) laryngitis
B) strep throat
C) tonsilitis
D) otitis media
E) bronchitis

Question 59

Hoarseness without an upper respiratory infection could be a warning sign of cancer.

Question 60

Which reaction does carbonic anhydrase catalyze?

A) H⁺ + HCO₃^- → H₂CO₃
B) H₂CO₃ → H₂O + CO₂